3-[2-(4-Fluorophenyl)ethyl]-2,3,5,6,7,8-hexahydro-7-methyl-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one

3-[2-(4-Fluorophenyl)ethyl]-2,3,5,6,7,8-hexahydro-7-methyl-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one